| Track Name | Track Artist | Album Artist | Album Name | Official Purchase/Artist Link | Album Genre | Source Track(s) |
|---|---|---|---|---|---|---|
| Jack-o'-Lantern | rudder-k | HAPPY I SCREAM!! | Scarlet's Halloween Party | Link | 赤より紅い夢 | |
| Scarlet's Welcome Song | mana | HAPPY I SCREAM!! | Scarlet's Halloween Party | Link | ほおずきみたいに紅い魂 | |
| Scarlet's Halloween Party | mana | HAPPY I SCREAM!! | Scarlet's Halloween Party | Link | U.N.オーエンは彼女なのか？ | |
| メイドと血の誓い | mana | HAPPY I SCREAM!! | Scarlet's Halloween Party | Link | メイドと血の懐中時計 | |
| Tango transient | rudder-k | HAPPY I SCREAM!! | Scarlet's Halloween Party | Link | 紅楼 ～ Eastern Dream... |